feat: add Snowflake Cortex provider with 23 models

[sfc-gh-nashukla]

Summary

Adds Snowflake Cortex as a new provider using the OpenAI-compatible REST API.

Provider configuration

• npm: @ai-sdk/openai-compatible
• API: https://${SNOWFLAKE_ACCOUNT_URL}/api/v2/cortex/v1
• Auth: SNOWFLAKE_PAT (Programmatic Access Token)
• Docs: https://docs.snowflake.com/en/user-guide/snowflake-cortex/cortex-rest-api

Models (23 total)

Family	Models
Claude	claude-sonnet-4-5, claude-sonnet-4-6, claude-4-sonnet, claude-opus-4-5, claude-opus-4-6, claude-opus-4-7*, claude-haiku-4-5
OpenAI via Snowflake	openai-gpt-4.1, openai-gpt-5*, openai-gpt-5.1, openai-gpt-5.2, openai-gpt-5.4*, openai-gpt-5-mini*, openai-gpt-5-nano*
Meta Llama	llama3.1-8b, llama3.1-70b, llama3.1-405b, llama4-maverick
Mistral	mistral-7b, mistral-large, mistral-large2
DeepSeek	deepseek-r1
Snowflake-native	snowflake-llama-3.3-70b

* = preview (status = "alpha")

Implementation notes

• Claude models use [extends] from anthropic/ with Snowflake-specific [cost] and [limit] overrides
• All models capped at output = 16_384 tokens (Snowflake platform limit)
• experimental.modes.fast omitted for opus models (not supported by Snowflake Cortex)
• Pricing sourced from the Snowflake Service Consumption Table
• bun validate passes cleanly

[sfc-gh-nashukla]

Team, I am wondering if you have any update to share with me?

[rekram1-node]

I think this was already added:
https://github.com/anomalyco/models.dev/blob/dev/providers/snowflake-cortex/provider.toml

[sfc-gh-nashukla]

Thanks for getting this merged, @rekram1-node I had a related PR open (#1841) with a few additions worth considering as a follow-up:

Missing models — the merged PR has 15 models; the full Snowflake Cortex catalog has 23. Missing:

llama3.1-8b, llama3.1-405b, llama4-maverick
mistral-7b, mistral-large
claude-opus-4-5, claude-opus-4-6
snowflake-llama-3.3-70b (Snowflake's own model)
Pricing — all rates are publicly available in the Snowflake Service Consumption Table. Happy to add those if the project wants them.

Provider name — one thing worth flagging: Snowflake recently renamed this product to Cortex Inference (previously "Cortex REST API"). Worth considering whether snowflake-cortex-inference would be more future-proof as a provider name, but happy to follow whatever convention the project prefers.

Happy to submit a follow-up PR with the missing models + pricing if that's helpful.